milo: Add barebones BuildInfo pRPC service.

milo/appengine/frontend/milo.go

 // Copyright 2015 The LUCI Authors. All rights reserved.
 // Use of this source code is governed under the Apache License, Version 2.0
 // that can be found in the LICENSE file.
 
 package frontend
 
 import (
         "net/http"
 
+        "github.com/golang/protobuf/proto"
         "golang.org/x/net/context"
 
-        "github.com/golang/protobuf/proto"
         "github.com/luci/luci-go/appengine/gaemiddleware"
         "github.com/luci/luci-go/grpc/discovery"
         "github.com/luci/luci-go/grpc/grpcmon"
         "github.com/luci/luci-go/grpc/prpc"
         milo "github.com/luci/luci-go/milo/api/proto"
         "github.com/luci/luci-go/milo/appengine/buildbot"
         "github.com/luci/luci-go/milo/appengine/buildbucket"
+        "github.com/luci/luci-go/milo/appengine/buildinfo"
         "github.com/luci/luci-go/milo/appengine/console"
         "github.com/luci/luci-go/milo/appengine/logdog"
         "github.com/luci/luci-go/milo/appengine/settings"
         "github.com/luci/luci-go/milo/appengine/swarming"
         "github.com/luci/luci-go/server/router"
 )
 
 func emptyPrelude(c context.Context, methodName string, req proto.Message) (context.Context, error) {
         return c, nil
 }
@@ skipping 41 matching lines @@
         r.POST("/pubsub/buildbot", basemw, buildbot.PubSubHandler)
 
         // pRPC style endpoints.
         api := prpc.Server{
                 UnaryServerInterceptor: grpcmon.NewUnaryServerInterceptor(nil),
         }
         milo.RegisterBuildbotServer(&api, &milo.DecoratedBuildbot{
                 Service: &buildbot.Service{},
                 Prelude: emptyPrelude,
         })
+        milo.RegisterBuildInfoServer(&api, &milo.DecoratedBuildInfo{
+                Service: &buildinfo.Service{},
+                Prelude: emptyPrelude,
+        })
         discovery.Enable(&api)
         api.InstallHandlers(r, gaemiddleware.BaseProd())
 
         http.DefaultServeMux.Handle("/", r)
 }